CVE-2023-5561

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    CVE-2023-5561

    Published: 16 Oct 2023Last Modified: 28 Oct 2026

    Summary: WordPress < 6.3.2 - Unauthenticated Post Author Email Disclosure

    Details: WordPress does not properly restrict which user fields are searchable via the REST API, allowing unauthenticated attackers to discern the email addresses of users who have published public posts on an affected website via an Oracle style attack

    References: https://lists.debian.org/debian-lts-announce/2023/11/msg00014.html, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5561.json, https://nvd.nist.gov/vuln/detail/CVE-2023-5561, https://wpscan.com/blog/email-leak-oracle-vulnerability-addressed-in-wordpress-6-3-2/, https://wpscan.com/vulnerability/19380917-4c27-4095-abf1-eba6f913b441

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 14247ee4302378d292863865c643abe99bbfe3c7
    Fixed -03505cd7f9898a337013d638fffb15fb6237ac99

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2023-5561 | CVE-DB